Dressed in ball gowns, tuxedos and “Make Bitcoin Great Again” baseball caps, a crowd of some of the country’s most powerful cryptocurrency executives gathered a few blocks from the White House for a lavish party three days before President Trump’s inauguration, toasting an incoming administration that had vowed to promote the industry’s interests.
Even Snoop Dogg joined the festivities, offering a rendition of “Don’t Stop Believin.’”
But the crypto millionaires and billionaires were caught off guard by what happened next.
At 9 p.m. on Jan. 17, with the festivities in full swing, Mr. Trump announced on social media that he was launching a new cryptocurrency — a so-called memecoin known simply as $Trump.
The surprise disclosure raised fresh ethics and legal concerns about the ways in which Mr. Trump continues to cash in on his power and fame, in this case by marketing a digital asset in an inherently volatile and…


